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02615f9b16
This flag is only a copy of (srv->uweight == 0), so better get rid of it to reduce some of the confusion that remains in the code, and use a simple function to return this state based on this weight instead.
112 lines
3.4 KiB
C
112 lines
3.4 KiB
C
/*
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* include/proto/server.h
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* This file defines everything related to servers.
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*
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* Copyright (C) 2000-2009 Willy Tarreau - w@1wt.eu
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation, version 2.1
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* exclusively.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _PROTO_SERVER_H
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#define _PROTO_SERVER_H
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#include <unistd.h>
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#include <common/config.h>
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#include <common/time.h>
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#include <types/proxy.h>
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#include <types/queue.h>
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#include <types/server.h>
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#include <proto/queue.h>
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#include <proto/log.h>
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#include <proto/freq_ctr.h>
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int srv_downtime(const struct server *s);
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int srv_lastsession(const struct server *s);
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int srv_getinter(const struct check *check);
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int parse_server(const char *file, int linenum, char **args, struct proxy *curproxy, struct proxy *defproxy);
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/* increase the number of cumulated connections on the designated server */
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static void inline srv_inc_sess_ctr(struct server *s)
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{
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s->counters.cum_sess++;
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update_freq_ctr(&s->sess_per_sec, 1);
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if (s->sess_per_sec.curr_ctr > s->counters.sps_max)
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s->counters.sps_max = s->sess_per_sec.curr_ctr;
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}
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/* set the time of last session on the designated server */
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static void inline srv_set_sess_last(struct server *s)
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{
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s->counters.last_sess = now.tv_sec;
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}
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#endif /* _PROTO_SERVER_H */
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/*
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* Registers the server keyword list <kwl> as a list of valid keywords for next
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* parsing sessions.
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*/
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void srv_register_keywords(struct srv_kw_list *kwl);
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/* Return a pointer to the server keyword <kw>, or NULL if not found. */
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struct srv_kw *srv_find_kw(const char *kw);
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/* Dumps all registered "server" keywords to the <out> string pointer. */
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void srv_dump_kws(char **out);
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/* Recomputes the server's eweight based on its state, uweight, the current time,
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* and the proxy's algorihtm. To be used after updating sv->uweight. The warmup
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* state is automatically disabled if the time is elapsed.
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*/
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void server_recalc_eweight(struct server *sv);
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/* returns the current server throttle rate between 0 and 100% */
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static inline unsigned int server_throttle_rate(struct server *sv)
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{
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struct proxy *px = sv->proxy;
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/* when uweight is 0, we're in soft-stop so that cannot be a slowstart,
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* thus the throttle is 100%.
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*/
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if (!sv->uweight)
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return 100;
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return (100U * px->lbprm.wmult * sv->eweight + px->lbprm.wdiv - 1) / (px->lbprm.wdiv * sv->uweight);
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}
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/*
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* Parses weight_str and configures sv accordingly.
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* Returns NULL on success, error message string otherwise.
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*/
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const char *server_parse_weight_change_request(struct server *sv,
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const char *weight_str);
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/*
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* Return true if the server has a zero user-weight, meaning it's in draining
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* mode (ie: not taking new non-persistent connections).
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*/
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static inline int server_is_draining(const struct server *s)
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{
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return !s->uweight;
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}
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/*
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* Local variables:
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* c-indent-level: 8
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* c-basic-offset: 8
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* End:
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*/
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